ES2118176T3 - DIAPHRAGM OF A TARGET. - Google Patents

DIAPHRAGM OF A TARGET.

Info

Publication number
ES2118176T3
ES2118176T3 ES93119287T ES93119287T ES2118176T3 ES 2118176 T3 ES2118176 T3 ES 2118176T3 ES 93119287 T ES93119287 T ES 93119287T ES 93119287 T ES93119287 T ES 93119287T ES 2118176 T3 ES2118176 T3 ES 2118176T3
Authority
ES
Spain
Prior art keywords
diaphragm
opening
ccd sensor
optical
target
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES93119287T
Other languages
Spanish (es)
Inventor
Markus Schnitzlein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oce Document Technologies GmbH
Original Assignee
Computer Gesellschaft Konstanz mbH
CGK Computer Gesellschaft Konstanz mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Computer Gesellschaft Konstanz mbH, CGK Computer Gesellschaft Konstanz mbH filed Critical Computer Gesellschaft Konstanz mbH
Application granted granted Critical
Publication of ES2118176T3 publication Critical patent/ES2118176T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Glass Compositions (AREA)
  • Outer Garments And Coats (AREA)
  • Testing Of Coins (AREA)
  • Window Of Vehicle (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Character Input (AREA)

Abstract

In the optical part of a scanning device for mechanical optical character recognition, a diaphragm (2') is provided for an objective (1) for imaging an original which is to be scanned line by line, on an optical CCD sensor (3). In this case, the diaphragm (2') has a diaphragm opening (4' and 4'' respectively) which extends in a direction running orthogonally to the CCD sensor (3), the form of which opening deviates from a circular form of a diaphragm opening. <IMAGE>
ES93119287T 1992-12-03 1993-11-30 DIAPHRAGM OF A TARGET. Expired - Lifetime ES2118176T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4240734A DE4240734C1 (en) 1992-12-03 1992-12-03 Lens hood

Publications (1)

Publication Number Publication Date
ES2118176T3 true ES2118176T3 (en) 1998-09-16

Family

ID=6474340

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93119287T Expired - Lifetime ES2118176T3 (en) 1992-12-03 1993-11-30 DIAPHRAGM OF A TARGET.

Country Status (5)

Country Link
US (1) US5648877A (en)
EP (1) EP0600444B1 (en)
AT (1) ATE167577T1 (en)
DE (2) DE4240734C1 (en)
ES (1) ES2118176T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6054043A (en) * 1995-03-28 2000-04-25 Simpson; Theodore B. Process for the hydrogenation of hydro-carbonaceous materials (Carb-Mat) for the production of vaporizable products
JP3070484B2 (en) * 1995-07-26 2000-07-31 株式会社デンソー Optical information reading device and optical information reading method
US6844981B2 (en) * 2002-09-25 2005-01-18 Koninklijke Philips Electronics N.V. Non-symmetrical light stop
JP2010181686A (en) * 2009-02-06 2010-08-19 Oki Data Corp Lens array, led head, exposure device, image forming apparatus and reading device
US11209578B2 (en) * 2017-08-02 2021-12-28 Sintai Optical (Shenzhen) Co., Ltd. Camera device
TWI627439B (en) * 2017-08-02 2018-06-21 信泰光學（深圳）有限公司 Camera device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637718A (en) * 1980-12-09 1987-01-20 The United States Of America As Represented By The United States Department Of Energy Hand-held optical fuel pin scanner
GB2164470B (en) * 1984-09-14 1988-10-26 Michael Rodney Browning Iris device
US5225924A (en) * 1989-04-07 1993-07-06 Dainippon Screen Mfg. Co., Ltd. Optical beam scanning system
US4959541A (en) * 1989-08-03 1990-09-25 Hewlett-Packard Company Method for determining aperture shape
JP2572152B2 (en) * 1990-08-17 1997-01-16 富士写真フイルム株式会社 Imaging device
EP0488080B1 (en) * 1990-11-27 1997-06-04 Asahi Glass Company Ltd. Projection type display apparatus with diaphragm
US5221835A (en) * 1991-06-07 1993-06-22 Canon Kabushiki Kaisha Image reading apparatus having a reflective blazed diffraction grating with varied pitch

Also Published As

Publication number Publication date
US5648877A (en) 1997-07-15
DE4240734C1 (en) 1994-03-31
ATE167577T1 (en) 1998-07-15
DE59308695D1 (en) 1998-07-23
EP0600444B1 (en) 1998-06-17
EP0600444A1 (en) 1994-06-08

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